CSS3 Rounded Corners Kodu
<!--
CSS3. Create buttons with rounded corners
Instructions: Paste this code in your .css file and apply this div <div class="rounded-corners"> </div> to your buttons.
Values for border-radius are: top left, right left, right bottom and left bottom in this order.
Also, include the call to the .css file between the <head> and </head> tags. Example: <link rel="stylesheet" type="text/css" href="css/myelements.css"/>
-->
.rounded-corners
{
background-color:lightgrey;
width:250px;
height:125px;
padding:10px;
border-radius: 10px 10px 10px 10px;
-ms-border-radius: 10px 10px 10px 10px;
-moz-border-radius: 10px 10px 10px 10px;
-webkit-border-radius: 10px 10px 10px 10px;
-khtml-border-radius: 10px 10px 10px 10px;
}